기존에

기존에

"Previously" or "already existing."

Here, '기존에' is used to refer to methods that were in use before or previously.

기존에 사용하던 방법을 개선해야 합니다.

We need to improve the methods we were previously using.

In this case, '기존에' denotes the prior state or condition where the issue was not widely recognized.

기존에는 이 문제가 잘 알려지지 않았습니다.

Previously, this issue was not well known.

Here, '기존에' emphasizes that the materials were already existing or in place before the current action.

기존에 있던 자료를 모두 정리했습니다.

All the previously available materials have been organized.